7th grade Science Review

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What is Phototropism?

Back

Phototropism is the growth of a plant in response to light, where the plant bends towards the light source.

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What is an example of a decomposer?

Back

Mushroom is an example of a decomposer, which breaks down dead organic material.

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What does the Cell Theory state?

Back

The Cell Theory states that all organisms are composed of one or more cells.

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What does an energy pyramid represent?

Back

An energy pyramid shows the amount of energy available at each feeding level in an ecosystem.

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How many chromosomes do you inherit from your mother?

Back

You inherit 23 chromosomes from your mother.

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Front

What is Gravitropism?

Back

Gravitropism is the growth of a plant in response to gravity, where roots grow downwards and stems grow upwards.

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Front

What is Thigmotropism?

Back

Thigmotropism is the growth of a plant in response to touch, such as vines wrapping around a support.

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Front

What is Hydrotropism?

Back

Hydrotropism is the growth of a plant in response to moisture, where roots grow towards areas of higher water concentration.

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Front

What are producers in an ecosystem?

Back

Producers are organisms, like plants, that create their own food through photosynthesis.

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Front

What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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